The water chestnut branch frequency changer heats
the limited company heating boiler application in Beijing Zhong
First, project survey
Beijing Zhong heats the limited company to be situated
to the Beijing seat of monarchical government celebrates the county
periphery, mainly undertakes 300,000 square meters inhabitants housing
heating, the Bank of China big hotel heating duty; This boiler
shop assembles 4 boilers, 3 are the hot water boilers, respectively is
20T, 10T, 6T, 1 is 6T supplies the boiler furnace; The total
electrical machinery capacity is 870KW.
Second, frequency changer in boiler energy conservation
application
The boiler main control technology lies in the coal
efficiency and uses electricity the efficiency, the traditional method
use air throttle thrustplate and the valve control air blower, makes
up the water pump, the circulating pump current capacity, it designs
considered by no means energy conservation goal, simultaneously,
production craft and production task different, when steam demand
quantitative change, must change to the coal (spurts falls) the
quantity, achieved high efficiency burning, the traditional control
mode uses the manual control, consumes the electricity to be high, the
control precision generation, also must the extremely skilled
technical personnel operate, the chimney only then can emit the black
smoke. The boiler because is often insufficient, when must again
open a parallel use, lunch steam pressure demand quantity insufficient
two, Chang Xupai the 空放 steam, reduces the steam pressure, both
waste energy and pollution environment.
Third, use water chestnut branch frequency changer boiler
intelligence control system movement
1st, economical uses electricity approximately 30%-80%,
approximately 6-9 month is the return on investment.
2nd, the enhancement combustion efficiency, the festival
economizes about coal 10%.
3rd, reduces discharges fume the density, avoids braving the
black smoke the environmental pollution.
4th, does not need to rely on the experienced operator, may the
data control.
5th, may the split-ring or the closed-loop control, also may
select the RS-485 communication connection to make the computer common
control.
6th, when many boilers parallel operation controls conveniently.
7th, actuates the electrical machinery 软起? does not have
the starting the impact class.
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